Usually you would test your firewall with the applications you need to use through it. That would be the only realistic test application wise. For testing sustained tcp connections you can use a tool tike TTCP, which can open the connection and test throughput of your firewall. http://www.pcausa.com/Utilities/pcattcp.htm Foor DDOS simulations, you would need multiple pc's on your network and a simulation tool: http://www.ssfnet.org/javadoc/SSF/App/DDoS/package-summary.html -Sietse ________________________________ From: netfilter-bounces@xxxxxxxxxxxxxxxxxxx on behalf of Fabio S. Silva Sent: Wed 21-Jun-06 14:14 To: netfilter@xxxxxxxxxxxxxxxxxxx Subject: question Hi all, i trying to find tools to test my firewall, i need to make some test like "Sustained TCP Connections" but i dont know tools to do it.. and... i need some tools to simulate an ddos to my firewall to see if its droping packets, etc.. anybody can help me ?? best regards.. Fabio S. Silva